there are a few tricks to Djenting, And requires a Certain pick. thiner picks are used for chords, but they can also be used to practice Djent and move up in thickness so that you can get a more agressive sounding jent, useing quick up and down movements with you hand while palm muting gives that low sort of metal vibe. there are amounts strumms need in dejenting these are Triplets and Quadruplets, those to are easist to learn. Triplets means to move you hand up and down three time so the pick touches the string, three times, quadruplets are the same but in fours